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Sustainability at Work

Providing free tools and expertise to achieve your goals

Phone: 503-823-7037

Email: sustainabilityatwork@portlandoregon.gov

What Can Be Composted

NOTICE: CHANGES TO THE ACCEPTED LIST

As of November 1, 2014, waxed cardboard will no longer be allowed as part of the commercial compost collection. As of March 1, 2015, only food scraps will be accepted.

These non-food items will NO LONGER be accepted:

 Materials no longer accepted in compost

**Portland’s residential composting program has not changed.

Bags - Transparent and semi-transparent BPI certified compostable bags will be the only non-food item allowed.

Find FAQs and more information about these changes.


Table of Contents

(Printable Version)

What's Allowed, and What's Not?

Food Only poster 11x17YES - these items can go into compost

  • Meat, poultry, fish, shellfish, bones
  • Eggs and eggshells, cheese, dairy products
  • Bread, baked goods, pasta, rice, beans, nuts, seeds
  • Coffee grounds and filters
  • Vegetables and fruit
  • Spoiled food

NO - these items cannot go into compost

  • Cardboard
    • Waxed or regular boxes
    • Pizza boxes
    • Plastic-coated cardboard
  • Paper products
    • Paper towels
    • Plastic-lined papers
    • Coffee cups
    • To-go boxes
  • "Compostable" products
    • The only non-food item allowed is BPI-certified compostable bags for collecting food
    • Even if something says "compostable," "biodegradable," or "made from plants" it CANNOT go into the compost
  • Yard debris
    • Tree trimmings
    • Leaves
    • Grass
    • Brush/weeds
    • Wood (raw, painted, treated)
    • Pallets
  • Liquids, grease, cooking oil
  • Plastic garbage bags
  • Plastic-lined papers
    • Coffee cups
    • To-go boxes
  • Plastic wrap/film
  • Styrofoam TM, metal, glass